Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Soil carbon accumulation in the dry tundra: Important role played by precipitation
Responsible organisation
2009 (English)In: Journal of Geophysical Research: Biogeosciences, Vol. 114, no G4Article in journal (Refereed) Published
Abstract [en]

A positive relationship between the mean annual precipitation (MAP) and soil organic carbon (SOC) is found in most surveys covering the subarctic and boreal region. In this paper we assess mechanisms behind variable SOC pools in dry tundra soils developed along a 50 km long subarctic precipitation (snow) gradient in northern Sweden. Lead 210 is used to infer SOC accumulation rates in the O horizon. Despite an unchanged or even slightly decreasing accumulation rate of SOC in the O horizon (range 0.02–0.06 kg C m−2 yr−1) along with increasing MAP and a relative constant litter input (∼0.04 kg C m−2 yr−1), the SOC pool in the upper 1 m increase significantly with increasing MAP. This trend is mainly due to a progressively buildup of SOC in the mineral soil and argued to be the result of an accelerated vertical translocation of SOC at sites overlain by a thick snowpack. Furthermore, the loss of SOC from the O horizon through wind erosion appears to be more pronounced at snow‐poor sites. We estimate that vegetated heath soil may loose >0.02 kg C m−2 yr−1 (∼half of the annual litter fall) due to wind erosion in snow‐poor areas. We stress that lateral and vertical translocation processes inherent by precipitation regimes may be of fundamental importance for the long‐term SOC

Place, publisher, year, edition, pages
2009. Vol. 114, no G4
Keywords [en]
tundra, carbon, 210Pb
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:polar:diva-8088DOI: 10.1029/2009JG000947OAI: oai:DiVA.org:polar-8088DiVA, id: diva2:1288063
Available from: 2019-02-12 Created: 2019-02-12 Last updated: 2019-02-12

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full texthttps://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2009JG000947
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 1 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf